Hi I have 5 plants growing at about 3 weeks from sprout. 1 of my plants (Barneys Farm LSD) has had yellow on most leaves since about 7 days in. I thought it was a nitrogen problem but I adjusted that and it didn't seem to work. Also, another one of my plants (Dinafem Afrodite) is a very bright green color (hint of yellow even). After further research into this problem I found myself looking into magnesium defficiencies. Anyways I now know that epsom salt can be added to watering to help fix this problem. My question is How often and how much epsom salt should be used? Should I only feed the LSD with it? Or the LSD and Afrodite? Or can I feed all 5 of my plants with it without any consequences. Thanks.
Epsom Salt Questions
- Thread starter db2
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FrostickZero
Well-Known Member
If you have some B-1 Thrive or some 20-20-20 I would give them a very light feeding. Also how how is it in the grow area? And what kind of light and how close is the light your your plants?
about 80 F, 400 watt hps in a 4x4x7 tent, light is 10 inches from the LSD plant (other 4 are next to it.)
Any ideas on how I should handle the epsom salt?
FrostickZero
Well-Known Member
What is the temperature in the tent?
The temp in the tent is usually in the lower 80s now. But before I got an exhaust fan it was sometimes in the 90s during lighting. I just got the exhaust a few days ago. Could it be temperature that's making my plant discolored?
max316420
Well-Known Member
are you in soil? and are they 7 days into flower or vegg? If possible throw up some pics so we can see. I can tell you this that if you are indeed in soil or some kind of soil mixture that the reason that your getting this def is either lack of nutrients or your getting ph lockout in your soil. And usually its magnesium that gets locked out and fucks your ladies up
FrostickZero
Well-Known Member
I actually can't post any pics right now cuz my camera is broke. But I can tell you that they are in soil and they are more than 3 weeks from sprout. I did see the yellopw after about a week or so though. Anyways how do I treat the magnesium lockout? how much and how often should I use the epsom salt? Which plants should I apply the salt to?
Yes but idk how to get pics online lol
The HPS has a cool tube though so I doubt the distance is the problem
FrostickZero
Well-Known Member
Most 20-20-20 and B-1 Thrive plant food will have a very small amount of meg in it.
max316420
Well-Known Member
I would try 1 teaspoon per gallon if your watering with it and if your gonna foliar feed try 1/2 teaspoon per gallon.. And to be on the safe side back your lights off a little if you decide to foliar feed. Cause if i didn't say that someone would post that spraying water on your plants acts like a magnifying glass and will burn the leave ( in my opinion that's a myth tho)
FrostickZero
Well-Known Member
For me I would go for 1/8 teaspoon to maybe half of 1/8 of a teaspoon. I found that some times it only needs a 1/8 or half of 1/8 of a teaspoon to fix a problem. But you are using a 400w HPS that is 10 inches away I still think the light might be to strong and is causing the problem. If you have some 4,100k temp CFL(s) you can use those with your HPS.
FrostickZero
Well-Known Member
Yes we need pics to be able to help you more. If you have a cell and you can take pics with it use a pic e-mail account send the pics to that, download the pic to your comp then upload them.
How often should I water with 1 teaspoon epsom salt per gallon though? every watering? every other watering?
I typically water every 48 hours because the soil is usually almost dry by then